It is time we forgot the old distinctive class borderline between the snapshotter and the amateur photographer, which was based on the capabilities of the equipment the two sectors used.

Kurt Gödel is reported to have remarked ‘‘There never were any set-theoretic paradoxes, but the property-theoretic paradoxes are still unresolved.’’ The idea behind the first part of his remark is presumably that the notion of set was hierarchical from the start, so that it should have been obvious all along that there was no Russell set (in the mathematical sense of ‘set’). The idea behind the second part is that this obvious resolution of Russell’s ‘‘paradox’’ for sets simply doesn’t carry over to the paradox for properties.

Dang Shen (Radix Codonopsis). Dang Shen comes from the Shangdang district of Shanxi province of China. There are two types, the wild type and the cultivated type.

Currently, the word slut is marching its way into its own mutation, and the OED definition is perhaps no longer sufficient. The question is this: when a word is undergoing a metamorphosis, where is its power? Until the battle over its meaning is won, what does it actually mean? Does it exist in a superposition of states, both positive and pejorative? Schrödinger's slut, anyone?